Top chef Jamie Oliver has revealed that he is content with his big family although he suspects his wife Jools would like to expand their brood even further.

Oliver, who celebrated his fortieth birthday this year, has four children with former model Jools, Poppy (13), Daisy Boo (12), Petal (6) and Buddy (4), but admitted he has considered a vasectomy to end their growing family.

“It’s an interesting question. My wife would love [a bigger family] but... that’s all I can say,” he told The Daily Mail.

When asked if he had considered a vasectomy, a procedure which sterilises men, the chef admitted that the thought had crossed his mind.

“I think that would be an option,” he said.

Oliver revealed he hasn’t prepared for the upcoming teenage years he is set to face being the father of three daughters, one of which is already 13.

“I’m seeking advice from everyone and it sounds like it’s a bloody horror show,” he said.

“I remember what I was like at that age, so I know I’m just going to be looking at a boyfriend and swearing to myself.

“I have a group of close friends that are all ex-Royal Marines and we have a surveillance plan with tracking comms and standard secret service protocol and we are contemplating doing it once to set a precedent so the boys are always wondering,” he said.

The 30 Minute Meals creator has recently shed more than two stone as he prepares to air his new Channel Four documentary ‘Sugar Rush’ created to launch his campaign against sugar.

The show is set to step away from the usual Oliver format and instead show the gruesome effects of sugar on children including a six year old boy who needs to have his teeth removed by a doctor.

Oliver revealed that his recent weight loss not only fits into the campaign but also with his changed ideas about aging.

“It totally fits with this campaign. I can’t rememeber exactly how much weight I’ve lost – I think 12kg.

“Turning 40 is an interesting one. You realise that you are not indestructible, but you also become much more paternal in general,” he said.